Dr. Brian M. Plato provides insights on ways to reduce the risk
Some migraine sufferers face a higher risk for stroke and heart attack, but there are ways to lessen the danger, according to Brian M. Plato, D.O., headache specialist and medical director at Norton Neuroscience Institute.
Nearly one in five women get migraines — three times the rate for men. In the United States alone, 28 million women experience migraines. Women also generally have more severe and more frequent migraine attacks.
There are two types of migraine: with or without aura.
Migraine with aura (MA) is linked to a higher risk for stroke and heart attack. Migraine aura typically precedes the headache pain. It can be flashes of light, blind spots or other changes in vision.
Migraine without aura (MO) does not seem to pose the higher stroke or heart attack risk that migraine with aura does. Most people with migraine do not have aura. Some people get both types of migraines.
Studies of women with MA attacks found the risk for stroke is independent of typical heart disease risk factors like age, diabetes and high blood pressure. Research looking at data from a number of studies found migraine is associated with a 1.5-fold increased stroke risk.
Smoking and MA significantly increases the risk of having a stroke. Oral contraceptive use increases the risk even more.
Women who smoke and have migraines with aura should avoid oral contraceptives that contain estrogen, according to Dr. Plato, because the additive risks from all three increase the risk of stroke significantly.
The link between migraine and heart disease does not mean migraines are the cause of a stroke or heart attack. Dr. Plato said the higher risk is likely the result of several factors. Possible contributors include:
- The use of nonsteroidal anti-inflammatory drugs (NSAIDs) to treat migraine
- Problems with the lining of blood vessels
- Lifestyle factors related to migraine, including reduced physical activity
- A common condition called patent foramen ovale (PFO), a hole between the left and right upper chambers of the heart
- Increased risk for a tear in an artery in the neck
Dr. Plato’s advice to patients is to work on lifestyle changes that decrease stroke and heart attack risks, including regular aerobic (cardiovascular) exercise, a healthy diet and not smoking.
Since the frequency of MA attacks appears to be associated with higher cardiovascular risk, Dr. Plato said migraine preventive treatment might be beneficial.
Younger women shouldn’t be overly concerned about the link between migraines and stroke or heart attack. For women under 50, even those who have MA, the odds of having a stroke is lower than being struck by lightning.